MyMixx Freebie: Starbucks Black Iced Coffee Posted on February 18, 2017 by The Goddess Well, only one MyMixx freebie this week, but since I have a stack of Monopoly piece freebies to redeem there anyway… Add this Starbucks Black Iced Coffee paperless coupon to your Jewel MyMixx account and redeem before 2/20. Get a rain check if they’re out or a substitute.